Castlevania: Aria of Sorrow

[Kitty of Doom]

I just started playing Aria of Sorrow and I've been playing nonstop. I just got up to Death and he thourougly kicked my ass several times before I decided to go back collect some more souls and level up. I got a soul from a Valkrye(sp?) and a Great Armor. The valkrye summons a giant sword that does some pretty heavy damage too. After that I went back and kicked some ass!

Does anyone know how to kill that bunny thing opposite to the entrance of the headhunter boss? It always freaks out when I approach it and sends me back to the entrance. I just got a soul from a devil and you can turn into a demon!